Review on Rustark 4Mm 45Mm Assortment Porcelain Drilling by Dustin Daniels

This product was a complete waste of money. the set was advertised as suitable for drilling porcelain but in reality, it barely made a dent. The bits became dull after just a few uses and ended up chipping the material instead of drilling through it .The only positive aspect to this product is the variety of sizes available. Overall, I would not recommend this set and suggest investing in a higher quality option from a more reputable brand..